1) 星系遠離你時,你所觀測到元素光譜『頻率』變化 a) increase(增加) b) constant(不變) c) decrease(減少) 2) 你靠近鳴笛的救護車,你所觀察到的『波速』變化 a) increase(增加) b) constant(不變) c) decrease(減少) 3) 你靠近鳴笛的救護車,你所觀察到的『波長』變化 a) increase (增加) b) constant (不變) c) decrease (減少) 4) 救護車鳴笛『等速』靠近你的過程中,你所聽到的『頻率』變化 a) increase b) constant c) decrease 5) When a fire truck is moving away from you, what is the change of wavelength ( λ ) ? a) increase b) constant c) decrease 6) 消防車鳴笛遠離你,你所觀察到的『波速』變化 a) increase b) constant c) decrease 7) You are sitting in a car while it is moving. What is the change of frequency of the horn ( 喇叭 ) ? a) increase b) constant c) decrease 8) 當星系遠離你時,所發出的光比靜止時發出的光譜,往頻率減少現象稱為? a) 紅移 b) 藍移 c) 偏移 9) 路面上測速照相,主要透過發出超聲波與從車子反射而接收到的頻率差異,測量速度的方式,是用什麼原理 a) 都卜勒效應 b) 光電效應 c) 電流磁效應 10) When a sound object goes close to you, what is the change of frequency ? a) increase b) constant c) decrease 11) 當消防車靠近你時,你所觀察到的『波長』變化為何? a) increase b) constant c) decrease

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